Rapid Unscheduled Disassembly
From Halopedia, the Halo wiki
Rapid Unscheduled Disassembly is an achievement in Halo Infinite. It is unlocked by destroying the two Phantoms before they leave Outpost Tremonius. This achievement awards the player 20 Gamerscore. The achievement was released during the Halo Infinite Winter Update
- The phrase "rapid unscheduled disassembly" (RUD) is an informal term in aerospace engineering referring to a failure caused by an overpressurized rocket fuel tank. Upon ignition, this can create a massive pressure spike which leads to structural failure, or even explosions in extreme cases.